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Forums
Engine Discussions
GM Duramax Engines
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01-04 LB7
GM Diesel Engines: 01-04 LB7
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Sticky
Pros and Cons of the LB7
BoostN
Jan 23, 2009
Replies
10
Views
10K
Dec 17, 2009
THEFERMANATOR
Sticky
LB7 FAQ's
Diesel Dually
May 4, 2008
Replies
19
Views
7K
Dec 9, 2009
Heartbeat Hauler
Sticky
Does Your Duramax Tick/Knock?? Read First.
durallymax
Feb 27, 2009
Replies
0
Views
5K
Feb 27, 2009
durallymax
J
Lb7 smokes at idle
Jimmykemp12
Nov 24, 2019
Replies
4
Views
257
Nov 28, 2019
THEFERMANATOR
P
Things to look for when buying?
packratt
Nov 20, 2019
Replies
2
Views
117
Nov 27, 2019
btfarm
2002 LB7 won't start. Low fuel rail pressure
Nick 6.5
Jun 24, 2017
Replies
14
Views
7K
Oct 10, 2019
MetalMaineak
D
Lb7 heads replaced engine ran but filled the crank case with diesel pulled right side valve cover return line leaking changed washers and reasembled
David sehorn
Sep 19, 2019
Replies
8
Views
371
Sep 21, 2019
THEFERMANATOR
friend broke down lb7
Will L.
Sep 14, 2015
Replies
3
Views
706
Sep 20, 2019
Will L.
O
Battery cable installation newbie
OleBeezus
Aug 18, 2019
Replies
6
Views
457
Aug 20, 2019
OleBeezus
O
0
105 alternator change to 130 ampere alternator
0Eric
Aug 14, 2019
Replies
0
Views
257
Aug 14, 2019
0Eric
0
Dreaded injector knock
Landon730
Jul 18, 2019
Replies
9
Views
716
Jul 20, 2019
Landon730
LB7 eating serpentine belts
Landon730
Jun 24, 2019
Replies
9
Views
755
Jun 26, 2019
Landon730
No boost
Landon730
May 23, 2019
2
Replies
38
Views
1K
Jun 12, 2019
Landon730
SAC00 hopefully the LB7's savior
THEFERMANATOR
Mar 22, 2019
Replies
3
Views
1K
May 17, 2019
THEFERMANATOR
Another History of the LB7
Big T
Dec 2, 2018
Replies
4
Views
890
Dec 6, 2018
THEFERMANATOR
S
Help! Won't start or prime
Shellie Walker
Oct 25, 2018
2
Replies
23
Views
1K
Nov 14, 2018
ak diesel driver
B
Limp mode/ engine runs rough.
Bigreddaddy
Sep 22, 2018
Replies
0
Views
462
Sep 22, 2018
Bigreddaddy
B
B
Little airflow coming out of vents 03 lb7
Burow22
Sep 19, 2018
Replies
3
Views
506
Sep 21, 2018
THEFERMANATOR
L
Loss of power at wot
luke22494
Jun 1, 2018
2
Replies
21
Views
2K
Jun 13, 2018
luke22494
L
Stealth 64 vs. fleece cheetah 63
Nick 6.5
Jun 7, 2018
Replies
1
Views
1K
Jun 7, 2018
THEFERMANATOR
Can LB7 injectors go bad from sitting?
GM Guy
Jan 10, 2018
Replies
15
Views
2K
Jan 16, 2018
GM Guy
Hate to post a stupid thread (Heater core lines)
Nick 6.5
Oct 7, 2017
Replies
18
Views
1K
Oct 10, 2017
MrMarty51
Lb7 dead pedal.
Nick 6.5
Sep 13, 2017
2
Replies
20
Views
2K
Oct 4, 2017
Nick 6.5
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